/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package cn.net.greenet.dpi.users.group;

import cn.net.greenet.db.HibernateUtil;
import cn.net.greenet.db.bean.Dpiusergroup;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;

/**
 *
 * @author Administrator
 */
@WebServlet(name = "cn.net.greenet.dpi.users.group.servlet.Update", urlPatterns = {"/dpium/group/update"})
public class Update extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        String groupId = request.getParameter("groupId");
        String groupName = request.getParameter("groupName");
        PrintWriter out = response.getWriter();
        SessionFactory sf = HibernateUtil.getSessionFactory();
        Session session = sf.openSession();
        Dpiusergroup bean = (Dpiusergroup) session.get(Dpiusergroup.class, Integer.parseInt(groupId));
        Transaction tx = session.beginTransaction();
        try {
            bean.setName(groupName);
            session.update(bean);
            tx.commit();
            out.println("{\"result\":\"true\"}");
        } catch (Exception e) {
            e.printStackTrace();
            out.println("{\"result\":\"false\"}");
            tx.rollback();
        } finally {
            out.close();
            session.close();
        }

    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
